The moment current flows [Zn+2] increases while the [Cu+2] decreases and this can be seen by the images in part (b) of figure 19.2.3 as the Zinc anode dissolves and copper ions attach themselves to the electrode and become reduced to neutral copper.
The moment current flows [Zn+2] increases while the [Cu+2] decreases and this can be seen by the images in part (b) of figure 19.2.3 as the Zinc anode dissolves and copper ions attach themselves to the electrode and become reduced to neutral copper.
E∘cell=RTnFlnK=(8.314JK⋅mol)(298.15K)n×96,485C/V⋅mollnK=0.0257Vnln
I cannot follow how 0.0257/n turns into 0.0592/n i have tried several times but i don't understand the relation.
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I had an annotation here reminding to put the balanced equation and I even balanced the equation, but some how my annotation got deleted? The balanced equation I believe is: 6H2O+5H++Cr2O7-2+HSO3-<=>2Cr(H2O)5SO4++SO4-2
Balance the following equation in acidic solution. Cr2O−27+HSO−3⇋Cr(H2O)5SO+4+SO−24Cr2O7−2+HSO3−⇋Cr(H2O)5SO4++SO4−2Cr_2O_7^{-2} + HSO_3^- \leftrightharpoons Cr(H_2O)_5SO_4^+ + SO_4^{-2} \nonumber Note: the above equation has a complex ion (Cr(H2O)5SO+4+SO−24Cr(H2O)5SO4++SO4−2Cr(H_2O)_5SO_4^+ + SO_4^{-2} that is involved with both half reactions, the chromium (which gets reduced) and the sulfur (which got oxidized). Answer
What is the balanced equation??
Cr2O−27+HSO−3⇋Cr(H2O)5SO+4+SO−24
write in that everything is aqueous
++
Remove one + sign.
undergoins
*undergoing
cancelling
*canceling
other atoms
clarify-other species has atom
Question 1 Determine the cell voltage E at 250C, when [Fe2+]=[I-]=0.01M, [Fe3+]=0.02M.
When [Fe2+] = what?? dont we need this concentration to solve Q??
meanint
typo "meaning"
.)
typo- delete ")"
are the different because the zero values
typo- delete "the"
Question 1 Determine the standard potential (V) for the cell reaction.
do we not need to multiply the Fe+3 resction by 2 - since it happens 2 times?? i get 2(.77)-.54 = 1
Question 5 5.
This problem need more info. to solve. the hint leads to a previous problem not included in this set.. it says k previous solved in #7...this is # 5...
Question 3 Balancing the reactions in the acidic solution:
Do we need to balance this equation first? have equal # of Cr & Oxygen on each side?? why would split this first?
Electrons flow towards a positive object and negative charge to it
This sentence doesn't make sense. Revise.
a an
Remove "a"
direction, in which case the electrochemical cell
Period after direction "." In this case the electrochemical cell.....
voltaic cell, which can be used to provide energy to do work
period after voltaic cell"."These two cells can be used to provide energy to do work.....
reactions
reaction*
modereleases
*model releases
into
in
can be split
delete be - can split